PARIS — One of two men who confessed to a 2009 double murder in Rumford is set to be sentenced Aug. 22.

Richard Moulton Jr., 22, pleaded guilty to killing Victor Reed Sheldon, 22, and Roger Leroy Day Jr., 48, last year. At that time, Assistant Attorney General Andrew Benson said the state would cap Moulton’s sentence on each of the two counts at 40 years, to be served concurrently. Moulton can argue for a shorter sentence.

Moulton agreed to testify against any co-defendants in “any cases relating to the deaths” of the victims.

Eric Hamel, 21, had also pleaded guilty to the killings. Sentencing for both men had been pending their testimony against Moulton’s ex-girlfriend, Gayla Sheldon.

Sheldon, the estranged wife of Victor Sheldon, pleaded guilty Friday to criminal conspiracy and criminal conspiracy in the murders. She was sentenced to 25 years in prison with all but 15 suspended and four years of probation when she’s released. Her trial had been set for Sept. 19.

Brenda Kielty, spokeswoman for the Maine Attorney General’s Office, said a clerk there is still working on a sentencing date for Hamel. Benson had agreed to a 50-year cap on Hamel’s sentence, but his attorney, George Hess, said he would fight for a shorter one.

Moulton and Hamel were honor roll graduates from Mountain Valley High School. After graduating, Moulton started dating Gayla Sheldon, who was estranged from her husband and had unsuccessfully filed for divorce from him. Victor Sheldon was living with Roger Day when the two were shot to death in Day’s house on Pine Street in Rumford.

Police said that on Aug. 3, 2009, Moulton had Hamel kill Victor Sheldon in revenge for an assault on Gayla Sheldon a month prior at Moulton’s apartment in Mexico. Hamel, also from Mexico at the time, initially denied involvement in the murders, but later told police that Moulton had asked him to kill Victor Sheldon and Day if he was in the house at the time. Hamel said he agreed to kill the men for $2,000.

A .38-caliber Smith and Wesson revolver stolen from a neighbor was used in the killings, police said. Hamel later led police to Oak Street where the gun was buried.

Moulton initially said he was in the bathroom when the shots were fired and didn’t know who killed them. He later admitted to his role in the killings.

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